One issue we can see with the concept. The society is more medieval than anything, thus clocks aren't readily available. This isn't steampunk or gearpunk, but rather relatively low fantasy. The only known source of magic are the Relics. everything else operates on a standard medieval basis with normal laws of physics. The few clocks that might exist would be situated upon massive structures, typically things like great universities. Solar clocks and water clocks could exist all round, though. Oh, and this isn't earth. The clocks, if they exist in reliable fashion at all, probably won't be base 12. 

The relic concept's ability to disintegrate objects seems too easy, with no real restrictions. Like we're doing in the criticism on another sheet, we'll suggest exploring the idea of a single primary ability rather than the numerous ones here.

One quick question: how controlled would the object disintegration/aging be? If he can't quite control the level of aging or exactly what is aged, it would be more acceptable to have it powerful. Kinda like the ability of the character Alessia by Sundered Echo (see CS thread). She can for example create a hemisphere of knee-shaking fear, but she can't control who it affects. It affects everyone in range except herself, allies and foes alike. As such, it is a double-edged sword. 
The more powerful an effect is (especially ones that are physical), the shorter the range is. 

Moving outside of time can too easily be abused, thats how we feel about it. 

Still, we see much potential in a time-messing relic concept.

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Pathfinder:
That appearance seems a bit impractical. Many of the things hanging from that armor are a threat to him more than anything, hindering his own movement.
No matter how strong our armor, we would not want to have a multi-kilogram spiked ball hanging freely at our waist by a short chain.
That sword there can't possibly be balanced. Its far too heavy a blade. We know that from our own (very unbalanced) sword. Too large blade, not nearly enough pommel.
still, despite those obvious issues, We've seen a lot worse. The base armor itself looks good, and the human inside it has more or less correct body proportions. use description to remove a couple of weapon errors and such, and the appearance should be good-to-go.
Plate armor is fairly rare in the Kalesian empire, as they tend to go with scale mail armor, but thats a minor hurdle compared to the other ones above here.

As for the relic:
Changing into a lance is pretty impractical. once used, a lance is discarded. Mostly because its stuck deeply into another person's body. Unless it has a means for returning magically to its sheath, that is. That would make it a very interesting relic.